Retina mode view

[psineur]

Best practice will be to work in sd, copy hd resources to the same folder and change to HD to see how it looks.

But you always can just use 960x640 workspace with -hd suffix in csd filename (i.e foo-hd.csd) and add -hd.png's to it.
CSDReader uses CCFileUtils to get paths, so they will take care about sd/hd node version.
This will give user ability to customize hd & sd versions of the same node independently